题目内容
氦氖激光器能产生三种波长的激光,其中两种波长分别为λ1=0.6328μm,λ2=3.39μm。已知波长为λ1的激光是氖原子在能级间隔为ΔE1=1.96eV的两个能级之间跃迁产生的。用ΔE2表示产生波长为λ2的激光所对应的跃迁的能级间隔,则ΔE2的近似值为
A.10.50eV | B.0.98eV | C.0.53eV | D.0.36eV |
D
试题分析:根据公式可得:
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824203402249762.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824203402904786.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408242034039651117.png)
故选D.
点评:解决本题的关键知道能级间跃迁存在这样的关系
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824203405088880.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
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